Features include the following: Theory and Application provide students with the general principles and everyday purpose of the labs; "In This Exercise" clearly explains what students can expect as they work through the Lab Procedures; Biochemical Reactions for the Organism and Indicator Reactions of the Test depict the reactions taking place in the lab; Materials, Medium Recipes, and Lab Procedures give students step-by-step instructions for conducting the labs. Biosafety levels are also included so that students are aware of the safety precautions necessary for each lab; Tables of Results help students organize and interpret results; Data Sheets provide students room to record their data and answer critical thinking questions; high-quality, full-color photographs, micrographs, and illustrations ensure that students have color-accurate visual representations of what they will see in the lab; photographs and Procedural Diagrams outline the steps necessary to correctly complete the lab; photographs with directional arrows help ensure students use proper technique; clearly written, informative captions help ensure students use proper technique in the lab.